/*
===========================================================================
ARX FATALIS GPL Source Code
Copyright (C) 1999-2010 Arkane Studios SA, a ZeniMax Media company.

This file is part of the Arx Fatalis GPL Source Code ('Arx Fatalis Source Code'). 

Arx Fatalis Source Code is free software: you can redistribute it and/or modify it under the terms of the GNU General Public 
License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Arx Fatalis Source Code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied 
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Arx Fatalis Source Code.  If not, see 
<http://www.gnu.org/licenses/>.

In addition, the Arx Fatalis Source Code is also subject to certain additional terms. You should have received a copy of these 
additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Arx 
Fatalis Source Code. If not, please request a copy in writing from Arkane Studios at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing Arkane Studios, c/o 
ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#include "Athena_Codec_RAW.h"
#include "Athena_FileIO.h"

#define _CRTDBG_MAP_ALLOC
#include <crtdbg.h>

namespace ATHENA
{

	///////////////////////////////////////////////////////////////////////////////
	//                                                                           //
	// Constructor and destructor                                                //
	//                                                                           //
	///////////////////////////////////////////////////////////////////////////////
	CodecRAW::CodecRAW() :
		stream(NULL),
		header(NULL),
		cursor(0)
	{
	}

	CodecRAW::~CodecRAW()
	{
	}

	///////////////////////////////////////////////////////////////////////////////
	//                                                                           //
	// Setup                                                                     //
	//                                                                           //
	///////////////////////////////////////////////////////////////////////////////
	aalError CodecRAW::SetHeader(aalVoid * _header)
	{
		header = _header;

		return AAL_OK;
	}

	aalError CodecRAW::SetStream(FILE * _stream)
	{
		stream = _stream;

		return AAL_OK;
	}

	aalError CodecRAW::SetPosition(const aalULong & _position)
	{
		if (FileSeek(stream, _position, SEEK_CUR)) return AAL_ERROR_FILEIO;

		cursor = _position;

		return AAL_OK;
	}

	///////////////////////////////////////////////////////////////////////////////
	//                                                                           //
	// Status                                                                    //
	//                                                                           //
	///////////////////////////////////////////////////////////////////////////////
	aalError CodecRAW::GetHeader(aalVoid *&_header)
	{
		_header = header;

		return AAL_OK;
	}

	aalError CodecRAW::GetStream(FILE *&_stream)
	{
		_stream = stream;

		return AAL_OK;
	}

	aalError CodecRAW::GetPosition(aalULong & _position)
	{
		_position = cursor;

		return AAL_OK;
	}

	///////////////////////////////////////////////////////////////////////////////
	//                                                                           //
	// File I/O                                                                  //
	//                                                                           //
	///////////////////////////////////////////////////////////////////////////////
	aalError CodecRAW::Read(aalVoid * buffer, const aalULong & to_read, aalULong & read)
	{
		read = FileRead(buffer, 1, to_read, stream);

		return AAL_OK;
	}

	aalError CodecRAW::Write(aalVoid *, const aalULong &, aalULong & write)
	{
		write = 0;

		return AAL_OK;
	}

}//ATHENA::